I have been a vegetarian for about 12 months now?

There are different types of vegetarian diets – you have not indicated what is included and excluded from your diet. Eggs? Milk? Honey? Fish? But generally speaking, vegetarians need to be concerned with vitamin B12, calcium, iron, and zinc deficiencies. In particular B12 vitamin, because it is obtained though animal products.
If you are a strict vegan, best is to add nutritional supplements or enriched foods to your diet. You need to plan your diet carefully to avoid any nutritional deficiencies by eating a wide range of foods.